68E-26007-56540 · OpenVSafe

Timeline

Registration Vaccinations Survey responses Call reports Cases without a report Call attempts Call successful Pregnancy survey

2021-03-09
Dose 1 — Moderna
2021-04-12
Dose 2 — Moderna
2021-04-13
Registered in v-safe
2021-04-13
Survey response — days 1–6 daily, dose 2
MedDRA: Heart rate increased — Feeling: Poor · Site: Pain · Fever · Chills, Muscle or body aches · Be unable to do your normal daily activities

Free text: Elevated heart rate, 15-20 bpm higher than typical.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-04-14
Health check-in — days 1–6 daily, dose 2
Feeling: Good · None

Adult check-in
2021-04-15
Survey response — days 1–6 daily, dose 2
MedDRA: Muscle twitching — Feeling: Good

Free text: Sometime yesterday, April 14 I developed a muscle twitch in my left tricep area. The vaccine was administered the the left arm. Strangely the twitch is only present went I bend my arm at the elbow. When my arm is straightened the muscle twitch stops. This has persisted for approximately 24 hours. I have no idea if this is related the vaccine. It is annoying but does not affect my functioning.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-04-16
Survey response — days 1–6 daily, dose 2
MedDRA: Muscle twitching — Feeling: Good

Free text: Twitch reported on 4-15 is still present, no better, no worse.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-04-17
Survey response — days 1–6 daily, dose 2
MedDRA: Muscle twitching — Feeling: Good

Free text: Twitching tricep I think has gotten better, but still there.

MedDRA releases: 2021-09,2023-04,2024-11 · check-in free text available
2021-07-12
Health check-in — 3 months, dose 2
Feeling: Good

Adult check-in

Vaccinations

Dose	Date	Manufacturer	Co-administered
1	2021-03-09	Moderna
2	2021-04-12	Moderna

Free text

Release 7 — days 1–6 daily, dose 2

2021-04-13

Systemic reaction (other): Elevated heart rate, 15-20 bpm higher than typical.

2021-04-15

Systemic reaction (other): Sometime yesterday, April 14 I developed a muscle twitch in my left tricep area. The vaccine was administered the the left arm. Strangely the twitch is only present went I bend my arm at the elbow. When my arm is straightened the muscle twitch stops. This has persisted for approximately 24 hours. I have no idea if this is related the vaccine. It is annoying but does not affect my functioning.

2021-04-16

Systemic reaction (other): Twitch reported on 4-15 is still present, no better, no worse.

2021-04-17

Systemic reaction (other): Twitching tricep I think has gotten better, but still there.

Each entry is dated by the survey it was written in (the CDC re-sent the releases with survey dates in 2025); click a date to see that survey response. The CDC cut some text off at about 250 characters: symptoms in every release, and the other two fields in releases 9-12. Those entries are marked "cut off by CDC".

MedDRA terms by release

Field	Preferred term	2021-09	2023-04	2024-11
SRO	Heart rate increased	✓	✓	✓
SRO	Muscle twitching	✓	✓	✓

✓ active code · ○ coded but marked inactive · blank = not in that release